There are several synonyms for the term "exact times" that can be used in various contexts. One such alternative is "precise timing," which refers to the act of scheduling and executing tasks at an exact moment or sequence. Additionally, "specific moments" can be used to indicate a particular period in time, while "precise instances" emphasizes the precision or accuracy of the time. "Defined slots" conveys the idea of a scheduled period for an activity, while "fixed appointments" refers to events that are predetermined and can not be changed. Lastly, "prescribed periods" connotes a sense of formality and adherence to a predetermined set of rules or guidelines.